<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>出错了</title>
</head>
<body>
<h2>
    页面出现了错误，即将返回首页
</h2>
</body>
<script>
    setTimeout("location.href='/'",4000)
</script>
</html>